Change version to Apache NetBeans 16

Author: ebarboni

.github/ISSUE_TEMPLATE/netbeans_bug_report.yml

@@ -27,8 +27,7 @@ body:
         Latest releases are always available from https://netbeans.apache.org/download/
       multiple: false
       options:
-        - "Apache NetBeans 15"
-        - "Apache NetBeans 16 release candidate"
+        - "Apache NetBeans 16"
         - "Apache NetBeans latest daily build"
     validations:
       required: true